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Finding the Fourth Proportional to 6,369.54, 8,789.49 and 3,574.50

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Solution

The fourth proportional to 6,369.54, 8,789.49 and 3,574.50 is: 4,932.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.54 : 8,789.49 = 3,574.50 : x
  2. Step 2: Convert to fraction form
    6,369.54/8,789.49 = 3,574.50/x
  3. Step 3: Cross multiply
    6,369.54x = 8,789.49 × 3,574.50
  4. Step 4: Simplify right side
    6,369.54x = 31,418,032.01
  5. Step 5: Solve for x
    x = 31,418,032.01/6,369.54
  6. Step 6: Final answer
    x = 4,932.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.